A better way:

Use this Exporter, it exports your Model directly to MDL File...

Link:
http://sites.google.com/site/machinimist/(look at the bottom and download the "export_3dgs_mdl7.py" File!)

cYa Sebastian


Tutorials:
[Blender]Terrain creation ENG/GER
[Blender]Low Poly Tree Modeling
[GIMP]Create a Texture for Terrains
CLICK HERE